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BCHM 463 Supplemental Problems for Friday, April 2, 2004 1. Write
BCHM 463 Supplemental Problems for Friday, April 2, 2004 1. Write

... 2. During glycolysis, how many ADP molecules are converted to ATP. Explain this answer with regard to your answer to #1. 4 ADP molecules are converted into ATP. There is a net gain of only 2 ATP molecules because 2 are consumed during the first stage of glycolysis. 3. What are the three metabolicall ...
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... • Stored in chemical bonds of compounds. • Compounds that store energy: ATP, NADH and FADH2. • When bonds are broken, energy is released. ...
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Note 17 - South Tuen Mun Government Secondary School
Note 17 - South Tuen Mun Government Secondary School

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... 24. Know the events of chemiosmosis discussed in class and where does it take place. - thylakoid membrane - ATP synthase - thylakoid space - electron flow - pH 4 - photosystems I & II - H+ concentration 25. Know what makes the Calvin cycle work or operate. Describe the events taking place in the Ca ...
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... 1. The pyruvate formed in glycolysis is transported from the cytoplasm into a mitochondrion where a. the citric acid cycle and b. oxidative phosphorylation will occur 2. Two molecules of pyruvate are produced for each molecule of glucose that enters glycolysis 3. Pyruvate does not enter the citric a ...
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... 84. What nutrients form a coenzyme which is used directly for amino acid Transamination? A. Pyroxine 85. What is catecholamine synthesized from? A. Epinephrine 86. How many essential amino acids are aromatic? A. 2 87. Thyroxime is derived from? A. Threonine B. Tyrosine C. Tyramine D. Thiamine 88. En ...
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5 carbohydrates and the Krebs Cycle
5 carbohydrates and the Krebs Cycle

MEMBRANE-BOUND ELECTRON TRANSFER AND ATP …
MEMBRANE-BOUND ELECTRON TRANSFER AND ATP …

... These pathways along with fatty acid oxidation produce energy rich molecules NADH and FADH2 as well as small amounts of ATP Chemotrophs derive energy from oxidation of fuel molecules and in aerobic organisms the ultimate electron acceptor is O2 Electron is not transferred directly ...
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Citric acid cycle



The citric acid cycle – also known as the tricarboxylic acid (TCA) cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats and proteins into carbon dioxide and chemical energy in the form of adenosine triphosphate (ATP). In addition, the cycle provides precursors of certain amino acids as well as the reducing agent NADH that is used in numerous other biochemical reactions. Its central importance to many biochemical pathways suggests that it was one of the earliest established components of cellular metabolism and may have originated abiogenically.The name of this metabolic pathway is derived from citric acid (a type of tricarboxylic acid) that is consumed and then regenerated by this sequence of reactions to complete the cycle. In addition, the cycle consumes acetate (in the form of acetyl-CoA) and water, reduces NAD+ to NADH, and produces carbon dioxide as a waste byproduct. The NADH generated by the TCA cycle is fed into the oxidative phosphorylation (electron transport) pathway. The net result of these two closely linked pathways is the oxidation of nutrients to produce usable chemical energy in the form of ATP.In eukaryotic cells, the citric acid cycle occurs in the matrix of the mitochondrion. In prokaryotic cells, such as bacteria which lack mitochondria, the TCA reaction sequence is performed in the cytosol with the proton gradient for ATP production being across the cell's surface (plasma membrane) rather than the inner membrane of the mitochondrion.
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